한국정보디스플레이학회:학술대회논문집
- 2008.10a
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- Pages.492-495
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- 2008
High performance top-emitting OLEDs with copper iodide-doped hole injection layer
- Lee, Jae-Hyun (Dept. of Materials Science and Engineering, and Center for OLED Seoul Nat'l Univ.) ;
- Leem, Dong-Seok (Dept. of Materials Science and Engineering, and Center for OLED Seoul Nat'l Univ.) ;
- Kim, Jang-Joo (Dept. of Materials Science and Engineering, and Center for OLED Seoul Nat'l Univ.)
- Published : 2008.10.13
Abstract
Efficient top-emitting organic light-emitting diodes were fabricated using copper iodide (CuI) doped NPB as a p-doped hole injection layer to improve hole injection from a silver bottom electrode. The enhanced hole injection is originated from the formation of the charge transfer complex between CuI and NPB. The devices result in high efficiency of 69 cd/A with almost Lambertian emission pattern.